Recombinant adeno associated virus expressing Flp fused to EGFP under the D1 promoter with WPRE and hGH polyA elements. The Flp dependent configuration enables expression only after recombination, providing precise targeted control of targeted neurons. Offered under the Biohippo AAVX Series with multiple serotypes available including AAV2/1, AAV2/2, AAV2/5, AAV2/6, AAV2/6m, AAV2/6.2FF, AAV2/7m8, AAV2/8, AAV2/9, AAV2/DJ, AAV2/DJ8, AAV2/Retro, AAV2/PHP.eB, AAV2/PHP.B, AAV2/rh10, AAV2/PHP.S, AAV2/anc80, AAV2/B10, AAV2/olig001, AAV2/BI30, AAV2/BR1, AAV2/MG1.2, AAV1/2, AAV2/MaCPNS1, and AAV2/MaCPNS2. Regular titer is greater than or equal to 2.00E+12 vg per mL, with high titer greater than or equal to 1.00E+13 vg per mL available upon request at no additional cost. Customers may specify preferred serotype and titer when placing orders.